What command should you run?

HOTSPOT
You deploy a new Exchange Server 2016 organization. The organization contains Two Mailbox servers.
You need to reject email messages if a redundant copy of the messages cannot be generated.
What command should you run? To answer, select the appropriate options in the answer area.
Hot Area:

Answer:

Explanation:
https://technet.microsoft.com/en-us/library/dd351027(v=exchg.150).aspx
https://technet.microsoft.com/en-us/library/bb124151(v=exchg.160).aspx